spendctl

Name: spendctl
Author: dev.spendctl

MCP serverMCP

Spend policy for AI agents that pay (x402, MPP). Login-free sandbox, real sidecar, no real funds.

by dev.spendctlhomepage ↗v0.1.0

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability11/11 checks ok

30 days ago

when	check	result	http	latency	detail
3 h ago	mcp initialize	ok	200	37 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
11 h ago	mcp initialize	ok	200	47 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
19 h ago	mcp initialize	ok	200	88 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
27 h ago	mcp initialize	ok	200	36 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
35 h ago	mcp initialize	ok	200	39 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
2 d ago	mcp initialize	ok	200	80 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
2 d ago	mcp initialize	ok	200	62 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
2 d ago	mcp initialize	ok	200	37 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
3 d ago	mcp initialize	ok	200	32 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools
3 d ago	mcp initialize	ok	200	63 ms	server spendctl-sandbox 0.1.0 · protocol 2025-06-18 · 6 tools

Tools observed via MCP handshake

sandbox_create — Creates an isolated spendctl sandbox and returns its sandbox_id. Call it first: every other tool needs the sandbox_id, and one sandbox serves a whole conversati
sandbox_pay — Fetches one of the sandbox's paid endpoints (HTTP 402, x402) through the spendctl sidecar, which applies the sandbox agent's budget, allowlist and approval poli
check_budget — Shows the sandbox agent's spending limits, what has been spent in each window and what is left. Use it before a paid call when the remaining budget matters, or
list_receipts — Lists the sandbox agent's most recent payment attempts, newest first: paid (amount and mock transaction hash), refused (reason codes) and waiting for approval.
get_policy — Returns the sandbox's spendctl.yaml as text: the preset name and the agent's budgets, allowed hosts and approval rules. Use it to explain why a payment was refu
approve — Approves or denies a payment that sandbox_pay reported as waiting for approval, as the human approver would with `spendctl approve`. Use it only with an approva

Declared by sources

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No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

homepageUrl Official MCP Registry

publisherName Official MCP Registry

Derived by Wellknown

Capabilities

Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.

code.executionCode Execution91%documents.invoice-processingInvoice Processing53%commerce.paymentsPayments51%

Provenance

Where this record came from

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Official MCP Registrydev.spendctl/spendctl

first seen 3 d ago · fetched 3 d agoopen ↗

Field history (6 recent events)

3 d ago · declared · summary → "Spend policy for AI agents that pay (x402, MPP). Login-free sandbox, real sidecar, no real funds."
3 d ago · declared · description → "Spend policy for AI agents that pay (x402, MPP). Login-free sandbox, real sidecar, no real funds."
3 d ago · declared · publisherName → "dev.spendctl"
3 d ago · declared · homepageUrl → "https://spendctl.dev/docs/sandbox/"
3 d ago · declared · version → "0.1.0"
3 d ago · declared · protocols → ["mcp"]